The best ways to deal with heavy hydrocarbons, oxygen and helium in LNG plant feed gas

Natural gas is one of the world’s most important sources of energy. Where natural gas pipelines are infeasible or do not exist, LNG is a way to move natural gas from producing regions to demand markets. Several recent LNG projects are based on pipeline gas (lean feed gas), which contains higher methane, with low natural gas liquid (C2–C5) and lower C5+ heavy hydrocarbon content than typical conventional natural gas. It is very challenging to remove a small amount of impurities to ensure a stable and efficient operation. Where does heavy hydrocarbon come from? Natural gas is available from conventional natural gas reservoirs and unconventional gas, such as shale gas, tight gas and coalbed me